275285772289 has 32 divisors (see below), whose sum is σ = 312236975232. Its totient is φ = 240530112000.

The previous prime is 275285772287. The next prime is 275285772317. The reversal of 275285772289 is 982277582572.

It is a cyclic number.

It is not a de Polignac number, because 275285772289 - 2¹ = 275285772287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 275285772289.

It is not an unprimeable number, because it can be changed into a prime (275285772287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8718759 + ... + 8750275.

It is an arithmetic number, because the mean of its divisors is an integer number (9757405476).

Almost surely, 2^275285772289 is an apocalyptic number.

It is an amenable number.

275285772289 is a deficient number, since it is larger than the sum of its proper divisors (36951202943).

275285772289 is a wasteful number, since it uses less digits than its factorization.

275285772289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31857.

The product of its digits is 79027200, while the sum is 64.

The spelling of 275285772289 in words is "two hundred seventy-five billion, two hundred eighty-five million, seven hundred seventy-two thousand, two hundred eighty-nine".